The quality of Spec-R is second to none, I've got loads of stuff on my S1. I did stop buying at one stage though as his prices went through the roof - a swirl pot that I paid £35 for was retailing for something like £115 at one stage £35 was cheap I know, but the increase as a percentage did make my eyes water a bit ! Still, you gets what you pays for, and as I said Spec-R are THE best in my view, bar none.